In either sex, hair loss from androgenetic alopecia occurs because of a genetically determined shortening of anagen, a hair's growing phase, and a lengthening of the time between the shedding of a hair and the start of a new anagen phase. (See "Life cycle of a hair.") That means it takes longer for hair to start growing back after it is shed in the course of the normal growth cycle. The hair follicle itself also changes, shrinking and producing a shorter, thinner hair shaft — a process called "follicular miniaturization." As a result, thicker, pigmented, longer-lived "terminal" hairs are replaced by shorter, thinner, non-pigmented hairs called "vellus."
One-fifth of men will experience significant hair loss by age of 20(!), and that percentage grows proportional to age. Bauman says that significant loss increases steadily with age: 30 percent will experience it in their 30s, 40 percent in 40s, and so on. “This math proves true for men into their 90s,” he says. “If you go unchecked but have maintained most of your hair by middle age, then your sensitivity to DHT is probably on the low side, meaning you have a slower rate of male pattern hair loss going on.”

Thinning hair can be annoyingly unpleasant. Especially when it starts at your temples, and simple things like putting your hair up in a ponytail become a matter of concern. Temple hair loss in females is common and dealing with it can be quite hard, but understanding hair loss and its causes can tremendously help find a solution. Keep reading to find out what causes hair loss at the temples and how you can regrow temple hair naturally.
Also new is the HairMax Laser Comb. It's a red light therapy hairbrush-like device that increases circulation and the biological march that makes hair. It's only approved in men (though some women are using it) and in my experience, is not as good as minoxidil. But in one study, 45% of users reported improvement after eight weeks, and 90% saw improvement after 16 weeks.
Hair follicles function in phases. The growth phase, called the anagen phase, is when your follicles are producing new keratin cells. After the anagen phase, a short transition phase, called the catagen phase, takes place. In this phase, the new cell becomes attached to the existing hair shaft. Then, in the last phase, called the telogen phase, the follicle rests. If a follicle prematurely enters the telogen phase (without entering or completing the catagen phase), the hair will fall out. It is normal to lose between 50 and 100 hairs per day. However, losing more or noticing patches of thinning hair may be the reason for concern. The medical term for hair loss is alopecia and there are several different types of alopecia that affect men. Some of these types include:

Hormone Replacement Therapy (HRT) restores post-menopausal oestrogen levels to average pre-menopausal levels. This reduces your risk of osteoporosis and alleviates menopausal symptoms, including hair thinning and/or loss. However, it is very important that you weigh the risks with the benefits. Studies have shown that HRT increases your chance of breast cancer, heart problems, mood swings, uterine cancer and endometriosis.
When one researches hair loss, or asks perimenopausal or menopausal women how they treat their thinning hair, a couple of vitamins and supplements come up again and again: Biotin and Viviscal. Biotin is a B-vitamin that’s part of the B family. Deficiencies are rare, but many women take supplements because it seems to improve the condition of their hair and nails. And by “seems to improve,” I mean that if you go on Amazon.com and look up “Biotin” or “vitamins for hair, skin, and nails,” you will find a plethora of products with five-star reviews and phrases such as “life-changing” and “bald no more” and “Works!!!”
Finally, while it’s hard, it’s just as important to keep things in perspective with hair loss at 20. Yes, it’s creepy when you first see it, but you’re not alone. Many guys lose hair in their twenties, and a whopping one in every two will have it by 50. So you’ve got hair loss at 20. That’s a good thing. You’ve got a 30 year head start to learn how to rock that look over the guy who loses hair later in life.
The notion that only middle-aged men experience baldness isn’t only false, it’s damaging. It causes 20-year-old men to feel self-conscious about their hair loss, meaning that most of them refuse to confront the reality that their hair is thinning. Accepting this reality is the first step towards preventing hair loss from accelerating and getting worse.

Most women, who notice hair loss around the time of the menopause, do not have anything medically wrong. Your doctor may ask you if there were any triggers for the hair loss, such as dietary deficiencies, stressful events or illness. You will be asked about your medical history to rule out other causes and might be tested for conditions such as anaemia, low ferritin, thyroid dysfunction, raised testosterone levels or skin disorders. If you show signs of hormonal imbalance, such as irregular periods, facial hair growth or new episodes of acne, this might be tested too.


Senescent thinning was indistinguishable from androgenetic alopecia in older males. Inflammatory changes were not a significant feature. Biochemical analysis for androgen receptors, 5 -reductase type 1 and 2, and aromatase, in scalp biopsies from older males showed nearly a two fold decrease in levels compared to levels in young males with Androgenetic Alopecia.

Finasteride (Propecia) is a medicine taken in tablet form that partially blocks the effects of the male hormones (an 'anti-androgen'). Propecia has been shown to halt further hair loss and promote re-growth of scalp hair in approximately 80 per cent of patients after three to six months. The treatment benefits also stop when you stop taking the medication. Only available on prescription and is available on some NHS primary care trust lists for certain conditions.


Another perhaps less-considered ailment causing hair loss for men and women in their 20s could be stress. The pressure on young people today to perform well at work and compete in busy UK markets can have a serious effect on long-term stress levels which in turn may cause premature hair loss. Highly-linked to stress is another condition called Trichotillomania whereby sufferers nervously pull out strands of hair repeatedly when they are under pressure.
Hi David, I understand where you are coming from. Losing hair at a young age is not a nice experience. Luckily, there is a lot more you could be doing besides the shampoo. Honestly I don’t know how much this will help in the long term. To get you started, you’ll probably have to adjust a few things in your diet and lifestyle to stop further loss/ regrow lost areas. A simple thing to get started would be to use a dermaroller (or even better a dermastamp) along the hairline. Remember though, pattern baldness starts from the inside out. It’s basically a sign that your body is out of balance. So try to sort that out as well.
I sat down, switched on my iPad and started to talk, explaining to people what I had personally been going through, what Alopecia was, showing them my hidden bald patches, and then sang a song as music had helped me through the toughest of times. I posted it on Facebook before really thinking. I had never been a public person, but for some reason, there was no doubt in my mind that my act of self-help had to be done in a very public way. We are all different, and this was my way of dealing with it.
The data is inconclusive as to whether or not cortisone shots actually work at re-growing hair, but I do know one woman who gets them frequently and says they have really helped her. Cortisone shots are given at the scalp, and the Mayo Clinic suggests they should not be given more often than every six weeks. While I know of some women who have had luck with acupuncture for hair loss, the British Acupuncture Society states that there is no evidence that acupuncture can treat hair loss as a specific symptom; however, it might help with the underlying problem. (For example, acupuncture can help treat lupus, which can cause hair loss.)
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